Joseph miller



(No Model.)

J. MILLER. AUTOMATIC GUT-OFF.

No. 406,847. Patented July 9, 1889.

Y I y 29A? E W//VESSES: llVl/ENTR Q@ 1 By M I y@ @j W ATTORNEY UNITEDSTATES PATENT OEEIcE.

JOSEPH MILLER, OF GREENFIELD, INDIANA, ASSIGNOR TO JOSEPH MILLER ANDHENRY SNOIV, OF SAME PLACE.

AUTOMATIC CUT-OFF.

SPECIFICATION forming part of Letters Patent No. 406,847, dated July 9,1889.

Application filed April 6, 1889. Serial No. 306,262. (No model.)

To all whom it may concern: Upon t-he upper plate C is secured an ad- Beit known that I, JOSEPH MILLER, of justable post consisting of astationary half Greenfield, in the county of Hancock and F, to which themovable half F is secured by State of Indiana, have invented a new andscrewsff passing through longitudinal slots 55 5 useful Improvement inAutomatic Out-Olfs, f in the stationary half F. The half F is of whichthe following is a specification. adjusted by a set-screw G.

My invention consists in a new and im- At the end of a projection f2 ofthe part F proved automatic cut-off, which will be hereis pivoted theupper end of the central arm inafter fully described and claimed. II ofthe quadrant or locking-lever I-I. This 6o Io Referring to theaccompanying` drawings, lever is curved in the arc of a circle, and itsFigure l is a perspective view of my new and lower end h is reduced,while it increases in improved cut-off. Fig. 2 is a central sectionalthickness and weight toward its upper end 71.. view of the same. Fig. 3is a central sectional The device standing at an angle, as shown, view,taken at right angles to the view shown when the locking-lever is swungback the 65 15 in Fig. 2, and Fig. l is a perspective view pressure ofthe gas, water, or steam raising the showing a slight modification of myinven- Valve pushes the valve-stem out, when the tion. point h of thelever rests lightly against the The same letters of reference indicatecorside of the valve-stein. When the pressure responding parts in allthe gures. is withdrawn, the valve will drop back to its 7o 2o My newand improved automatic cut-off is place, when the locking-lever willswing down designed for gas, steam, or water, and maybe by its ownweight over the end of the valveattached to any valve, and will workperstem, thus locking the valve securely down to fectlywhen placed atany angle not to exceed its seat, as shown in the drawings. To openforty-five degrees. the valve, the locking-lever is swung' up and 75 z 5Referring to the several parts by letter, A back clear of thevalve-stem, so that the valve indicates the lowercircular plate of thevalve, will rise by pressure, when the point of the which is cast orotherwise secured to the tube lever will restagainst the side of thestem,as B, this plate having the circular central openbefore. ing Asurrounded by the seat A2. The wa- Instead of the adjustable post, towhich the 8o 3o ter, gas, or steam passes from the tube B locking-wedgeis pivoted, it Inay be pivoted through opening A into the valve-chamber,directly to the side of the top plate, as shown and out through theopening A3 into the tube in Fig. 4, when the side of the curved wedge onthe other side of the partition B in the is beveled, so that while theend of the wedge tube B. The upper half O of the valve-chamrests againstthe side of the valve-stem when S 5 35 ber is arched, as shown, to giveroom for the the valve is raised, when the valve falls the play of thevalve and for the water, the., to beveled wedge will s-lide down overthe end pass through. of the valve-stem by its own weight, and thus Dindicates the valve, the stem D of which securely lock and hold thevalve shut on its passes through a central opening C in the seat. 9o 4oupper half C of the valve-chamber- A rub- The adjustable half F of thepost can be ber diaphragm E is secured between the adjusted by the screwG in or out to raise or halves of the valve-chamber, and the valveDlower the pivoted locking-wedge to the exact may rest upon the upperside of this flexible extent desired. diaphragm, as shown in thedrawings; or the Frein the foregoing description, taken in 95 .15valve-stem may pass through the rubber diaconnection with theaccompanying drawings, phragm and the valve rest direct-ly on the theconstruction, operation, and advantages seat A2. of my invention will bereadily understood. The above mentioned parts are old, and It will beseen that I obviate the necessity of form no part of my invention, as mycut-olf leveling the cut-otl', as it may be attached to Ioo. 5o isadapted to be applied to any kindof valve a pipe at almost any angle,while the cut-off E having a valve-seat. operates automatically andperfectly, and will I claim, and desire to secure by Letters Pat- 1. Ina eut-off, the Combination, With a Valve having the proj eating stem, ofa pivoted looking-wedge, substantially as set forth.

2. In a eut-off, the co1nbination,\vith a valve 15 having the projectingstem, of the looking- Wedge pivoted to a post on the valve-easing,substantially as set forth.

3. In a eut-oft, the oo1nbination,with a valve havin g the projectingstem, of the adj nstable post, and the looking-wedge pivoted to thesame, substantially as set forth.

JOSEPH MILLER.

Witnesses:

HENRY SNOW, ALBERT R. HUGHES.

